Re: Colored Error Bars

Hi Daniel,

try 'SetLineColor'

Cheers,

Anne

On Mar 22, 2011, at 7:28 PM, Daniel A. Fagundes wrote:

> Hi,
> I'm new in ROOT and I'm having a problem on drawing a graph with colored error bars.
> Here it goes a little piece of my macro:
>
> TCanvas *c1 = new TCanvas("c1","Differential Cross Section",200,10,700,500);
> c1->SetFillColor(0);
> c1->SetLogy();
>
> TGraphErrors *gr1 = new TGraphErrors(npt_19,q2_exp_pp19,dsdt_exp_pp19,erX_dsdt_exp_pp19,erY_dsdt_exp_pp19);
> TGraphErrors *gr2 = new TGraphErrors(npt_23,q2_exp_pp23,dsdt_exp_pp23,erX_dsdt_exp_pp23,erY_dsdt_exp_pp23);
> gr1->SetMarkerStyle(20);
> gr1->SetMarkerSize(0.6);
> gr1->SetMarkerColor(2);
>
> gr2->SetMarkerStyle(20);
> gr2->SetMarkerSize(0.6);
> gr2->SetMarkerColor(8);
>
> TMultiGraph *mg = new TMultiGraph();
> mg->Add(gr1);
> mg->Add(gr2);
> mg->Draw("APZ");
>
> In the output only the central values gets different colors.
> Could anyone help me with this?
> Appreciate any help,
> Daniel.
>
>
>
> -----------------------------------------------------------------------------------------
> Daniel Almeida Fagundes
> Estudante de Doutorado - PhD Physics Student
> Universidade Estadual de Campinas - UNICAMP
> Instituto de Física Gleb Wataghin - IFGW
> Departamento de Raios Cósmicos e Cronologia - DRCC
> Grupo Teórico - Fenomenologia das Interações Hadrônicas
> Sala: 205
> Ramal: 5535
> Contatos:
> Tel: +55 (19) 3521-5535
> Cel: +55 (19) 9366-4227
> -----------------------------------------------------------------------------------------
Received on Tue Mar 22 2011 - 20:16:29 CET